sin system: demonic harem after reincarnation

In this world where monsters and magic exist, there are all sorts of things inexplicable with science. Lee Woo was a famous scientist in his old world until he got sent to a monster world where science doesn't exist so he will make it exist.

After almost beaten up to death by two bullies, Arden is chosen by a system and teleported to a mysterious world called the Astro world filled with mystical beasts and magical races, he has to complete the missions given to him by the system to level up and survive a harsh world where only the strong prevail in. Join Arden as he rises through the rankings to become the strongest existence.

Othniel was a poor man who had a major accident due to his wife's betrayal. For three days, Othniel was in a coma and kept having strange dreams. He got a choice from the dream. First he will get 10,000,000$ or work with the system. Then Othniel decided to choose to work with the system. And that's when Othniel realized and immediately got a job from the system. Challenge after challenge, Othniel must be able to complete. Every time Othniel succeeds, he will get an extraordinary salary.

In a world where Superheroes and Villains shape destiny, Arome Idu stands out- but not for his power. Born a prince, he is the only member of his royal bloodline to lack the fabled Star Lion ability, a gift that secures both throne and legacy. stripped of his birthright, Arome becomes a weapon for his kingdom, serving as a killer and child soldier. Haunted by a past of bloodshed, he abandons his homeland to forge a new path overseas, determined to outshine the cousin who claimed his throne, by managing the rise of a hero greater than any before. But fate has other plans. On the day of his pivotal interview, two A-Ranked Villians Attacked, leaving Arome dead. Yet death is not the end, but the spark of something greater! (You Have Unlocked Your Power: Total Cellular Regeneration and Awakened The Superhero Manager System!)

Cody Wolfe survived the apocalypse, but must struggle hard to stay alive. He spends his days running from zombies and scavenging for food. Then, in a life-or-death situation, his destiny took an unexpected turn. He got a system to control those walking corpses. With each level up, he gained a new skill, ranging from enhancing the zombies’ speed to granting them earth-shattering abilities. Would he use that power only for survival? Or could he utilize it for more?

In a world where power determines your identity and future, the human race is under threat from vicious creatures known as Mutants. When the Mutants wage war against the humans, their weapons are rendered useless due to the immense power of the Mutants. Just when all hope seems lost, a few good Mutants decide to share their powers with the human race, enabling them to defeat the Mutants and send them back to their world. But the government, corrupt and greedy, decides to sell these powers to the highest bidder, leaving the less fortunate with nothing. Among them is a teenage boy named Ajax Hart, until one day he completes a task and a strange system enters him. The system warns him that he is dying slowly, and his soul point will reduce by 10% per hour if he doesn't consume a soul. [YOUR SOUL POINT IS RUNNING LOW] [CONSUME A SOUL TO GET POINTS] [SOUL POINT WOULD REDUCE BY 10% IF A SOUL IS NOT CONSUMED] Ajax is left with a choice: to embrace his newfound power and become a hero or to succumb to his fate and lose his soul. With the fate of the world hanging in the balance, Ajax must navigate a dangerous world of power, corruption, and soul-consuming monsters to survive. Will Ajax rise to the challenge and become a hero, or will he fall victim to the darkness that surrounds him? Find out in this thrilling tale of power, corruption, and the fight for survival. THE MUTANT SYSTEM READ MY OTHER BOOK "LEVELING UP IN AN APOCALYPSE".

Greenish Race invaded the planet earth and destroyed everything, especially humans. Humans who survive crawl to the underground and create “weapons” to revenge. 100 “weapons” called HumanBot. Asher was one of the 100, the weakest or the luckiest, who knows? All the modified DNAs planted in his body were well-expressed. And not only that, but he also got a system—A mutant system. [The Mutant System has been granted] “You have 0 DNA essence in your bank.” “Unlocking DNA Extraction Skill Level 1.” [Cost: 0 DE] … Being the extraordinary human breed, will Asher and the HumanBot be able to bring back the glory for the human race?

Matthew Wilson had to die after being crushed by a truck. But suddenly, he found himself in the body of Dominic Rayn. In Matthew's opinion, Dominic Rayn was a brave and honorable man. However, he was just a poor, useless son-in-law who had been betrayed and often targeted for manipulation by the powerful and wealthy people in his life. Living in his way was horrible. Imagine Matthew's life at that time. But the system became preoccupied with Matthew after he came back to life in Dominic Rayn's body. This system, known as Trivia, had an infinite balance and was ready to grant Matthew eternal balance if he successfully completed a scenario. And in Matthew's new existence, Trivia has given him many opportunities to act in a way that will give him infinite balance and show that he is no longer a weak and easily manipulated man or an annoying son-in-law.

Have you ever considered what you would do if your tranquil world suddenly became post-apocalyptic, with mankind being persecuted by monstrous creatures and demonic beasts? Or humanity at the bottom of the food chain and being pushed to the brink of extinction?  ***  The crimson moon's appearance marked the beginning of everything; terrifying monsters and other beings, including vampires, werewolves, ghouls, and many more, have been present. These beings are referred to as the "supernaturals." The only people who can fight for humanity and prevent the extinction of humans are individuals who have extraordinary powers known as the "blessed." At a cost. Dave, a social outcast harassed for his lack of unique skills and being an orphan whose parents were killed by the supernatural, unexpectedly acquires access to the "system" with a unique lineage. Follow Dave as he rises to the top of a post-apocalyptic, dystopian society where the strong become predators and the weak become prey. Don't forget to leave a frank review and comment, as well as add the book to your library, as your readership will determine how long the book will be. Additionally, as a gesture of support and gratitude, you can vote for me using gems. Click the cloud or cart image with the arrow pointing down in it on the right side to download the chapters at the best and most reasonable price possible.

[ Intense full action, adventure, gore bloodshed, and may contain content inappropriate for children. ] "What if technology and systems as weapons of mass destruction?" 40XX, Oakenvale Metropolis State. Since his parents mysteriously disappeared, Seth's life has been chaotic. Seth Vonstein, who lives in the lower caste of Oakenvale State, can do nothing when his wealthy co-workers treat him like scum and abuse him inhumanely. They called Seth a state loser who deserves to die. Anger, disgust, and revenge. Seth only can hold without being able to resist. One day wakes up from his slumber when a mysterious phone warns him that the dangerous secret organization called the codex is after him. At first, Seth did not believe the contents of the mysterious phone and denied it. However, a mob of strangers in black suits comes to his apartment and fires everything. They hunt down Seth in a brutal way. ---------- [ Greetings, Vonstein. I've been searching and watching you all this time. Congratulation, your Assassination System is activated_ ] [ We have a list of the target for your execution_ ] [ Now, you have two choices – do you want to be a hunter as a hero or die to be hunted as a coward?_ ] ***